In a two-slit interference experiment, a viewing screen is placed 5 meters directly behind two slits separated by 4 µm. coherent, monochromatic light of wavelength λ = 700 nm emerges (in phase) from the slits. (assume the slit width is very small compared to the wavelength λ.) 24. at what value of x on the screen does the largest-order intensity maximum occur (i. e., the one that is the farthest from the center line)? a. x = 1.2 mb. x = 4.4 mc. x = 5.0 md. x = 9.0 me. x = 15.7 mwhat happens to the separation between the existing intensity maxima on the screen as we increase the slit spacing? a. the separation decreases. b. the separation increases. c. there is no change.

How does convection affect our atmosphere? our layers of earth? our oceans?

In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ă—106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .

The friction of the water on a boat produces an acceleration of -10. m/s2. if the boat is traveling at 30. m/s and the motor is shut off, how long it take the boat to slow down to 5.0 m/s?